Buggy code:
public final class Main { public static void usage ( ) { } private Main ( ) { } public static void main ( String [ ] args ) { } private static void abort ( Throwable t ) { } public static Main . ParsedOptions determineEnvironment ( String [ ] args , Properties systemProperties , Map < String , String > systemEnvironment , ServerEnvironment . LaunchType launchType ) { List < String > clientArguments = new ArrayList < String > ( ) ; Main . ParsedOptions ret = new Main . ParsedOptions ( ) ; ret . clientArguments = clientArguments ; final int argsLength = args . length ; String appClientConfig = "appclient.xml" ; boolean clientArgs = false ; for ( int i = 0 ; i < argsLength ; i ++ ) { final String arg = args [ i ] ; try { if ( clientArgs ) { clientArguments . add ( arg ) ; } else if ( ( ( ( VERSION . equals ( arg ) ) || ( SHORT_VERSION . equals ( arg ) ) ) || ( OLD_VERSION . equals ( arg ) ) ) || ( OLD_SHORT_VERSION . equals ( arg ) ) ) { System . out . println ( ( "JBoss<seq2seq4repair_space>Application<seq2seq4repair_space>Server<seq2seq4repair_space>" + ( getVersionString ( ) ) ) ) ; return null ; } else if ( ( ( HELP . equals ( arg ) ) || ( SHORT_HELP . equals ( arg ) ) ) || ( OLD_HELP . equals ( arg ) ) ) { Main . usage ( ) ; return null ; } else if ( ( ( PROPERTIES . equals ( arg ) ) || ( OLD_PROPERTIES . equals ( arg ) ) ) || ( SHORT_PROPERTIES . equals ( arg ) ) ) { if ( ! ( Main . processProperties ( arg , args [ ( ++ i ) ] ) ) ) { return null ; } } else if ( arg . startsWith ( PROPERTIES ) ) { String urlSpec = Main . parseValue ( arg , PROPERTIES ) ; if ( ( urlSpec == null ) || ( ! ( Main . processProperties ( arg , urlSpec ) ) ) ) { return null ; } } else if ( arg . startsWith ( SHORT_PROPERTIES ) ) { String urlSpec = Main . parseValue ( arg , SHORT_PROPERTIES ) ; if ( ( urlSpec == null ) || ( ! ( Main . processProperties ( arg , urlSpec ) ) ) ) { return null ; } } else if ( arg . startsWith ( OLD_PROPERTIES ) ) { String urlSpec = Main . parseValue ( arg , OLD_PROPERTIES ) ; if ( ( urlSpec == null ) || ( ! ( Main . processProperties ( arg , urlSpec ) ) ) ) { return null ; } } else if ( arg . startsWith ( SHORT_HOST ) ) { String urlSpec = Main . parseValue ( arg , SHORT_HOST ) ; ret . hostUrl = urlSpec ; } else if ( arg . startsWith ( HOST ) ) { String urlSpec = Main . parseValue ( arg , HOST ) ; ret . hostUrl = urlSpec ; } else if ( arg . startsWith ( SYS_PROP ) ) { String name ; String value ; int idx = arg . indexOf ( "=" ) ; if ( idx == ( - 1 ) ) { name = arg . substring ( 2 ) ; value = "true" ; } else { name = arg . substring ( 2 , idx ) ; value = arg . substring ( ( idx + 1 ) , arg . length ( ) ) ; } systemProperties . setProperty ( name , value ) ; SecurityActions . setSystemProperty ( name , value ) ; } else if ( arg . startsWith ( APPCLIENT_CONFIG ) ) { appClientConfig = Main . parseValue ( arg , APPCLIENT_CONFIG ) ; } else { if ( arg . startsWith ( "-" ) ) { System . out . println ( MESSAGES . unknownOption ( arg ) ) ; Main . usage ( ) ; return null ; } clientArgs = true ; clientArguments . add ( arg ) ; } } catch ( IndexOutOfBoundsException e ) { System . err . println ( MESSAGES . argumentExpected ( arg ) ) ; Main . usage ( ) ; return null ; } } <START_BUG> ret . environment = new ServerEnvironment ( systemProperties , systemEnvironment , appClientConfig , launchType ) ; <END_BUG> return ret ; } private static String parseValue ( final String arg , final String key ) { } private static boolean processProperties ( final String arg , final String urlSpec ) { } private static URL makeURL ( String urlspec ) throws MalformedURLException { } private static final class ParsedOptions { ServerEnvironment environment ; List < String > clientArguments ; String hostUrl = "remote:////localhost:4447" ; } }

Fix:
ret . environment = new ServerEnvironment ( systemProperties , systemEnvironment , appClientConfig , launchType , null ) ;